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养其根而俟其实,加其膏而希其光--浅析赞比亚的经济与铜工业刘慧芝,李建会摘 要:赞比亚是一个贫穷的非洲国家,外资控制的铜工业是赞比亚的经济支柱.英美公司(AngloAmerican)下属孔科拉铜矿公司(KCM)是赞比亚主要的铜生产商,2001年,KCM铜产量占全国产量的67%.由于铜价低迷,英美公司决定撤出KCM,不再向KCM投资.多数分析家认为,英美公司的撤出将会导致KCM及赞比亚铜工业的衰退,并使赞比亚经济一蹶不振.但笔者认为,在受此打击的同时也促进了赞比亚政府对经济发展新思路的产生和实施,从而将有助于赞比亚铜工业能长期稳定,持续发展.关键词:赞比亚;铜工业;科孔拉铜矿公司;......
J. Cent. South Univ. Technol. (2009) 16: 0914-0918 DOI: 10.1007/s11771-009-0152-x Preparation and properties of geopolymer-lightweight aggregate refractory concrete HU Shu-guang (胡曙光)1, WU Jing (吴 静)1, YANG Wen (杨 文)2, HE Yong-jia (何永佳)1, WANG Fa-zhou (王发洲)1, DING Qing-jun (丁庆军)1 (1. K......
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Biooxidation-thiosulfate leaching of refractory gold concentrateHe-fei Zhao1,2,Hong-ying Yang1,2,Lin-lin Tong1,2,Qin Zhang1,2,Ye Kong1,21. Key Laboratory for Ecological Metallurgy of Multimetallic Mineral (Ministry of Education), Northeastern University2. School of Metallurgy, Northeastern Universit......
Aerosol flotation of low-grade refractory molybdenum oresTao Xu and Chun-bao Sun Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing 100083, China摘 要: RESEARCH ON REFRACTORY SUPERALLOYS IN THE HTM 21 PROJECT
Y.Yamabe-Mitarai1,Y.F.Gu1,H.Harada1,C.Huang1
(1.High-Temperature Materials Group, National Institute for Materials Science, Sengen 1-2-1,Tsukuba, Ibaraki 305-0047, Japan)
Abstract:It was proposed that a new class of alloys based on platinum......RESEARCH ON REFRACTORY SUPERALLOYS IN THE HTM 21 PROJECT
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来源: 《Acta Metallurgica Sinica2005年第1期》——Y.Yamabe-Mitarai Y.F.Gu H.Harada C.Huang
Article ID: 1003-6326(2005)05-1178-07 A new extraction process of carbonaceous refractory gold concentrate MENG Yu-qun(孟宇群) (Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China) Abstract: A new hydrometallurgical process for a carbonaceous refractory gold concentr......
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